Quantum f-divergences from retrodiction: a unifying classical variational principle

quant-ph, cs.IT, math-ph, math.IT, math.MP

Submitted: 2026-10-21

Updated: 2026-10-21

Comments: 18 pages, 2 figures; preliminary version, comments welcome; 100th arXiv post

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Related papers

• Reconquering Bell sampling on qudits: stabilizer learning and testing, quantum pseudorandomness bounds, and more
• Encrypted clones can leak: Classification of informative subsets in Quantum Encrypted Cloning
• Polynomial-time classical and quantum simulation of quantum impurity models
• Incoherent Imaging with Spatially Structured Quantum Probes
• A quasiparticle-protected superconducting qubit
• Theory of quantum-enhanced interferometry with general Markovian light sources